Fricke gel dosimetric catheters in high dose rate brachytherapy. In phantom dose distribution measurements of a 5 catheter implant - Carrara, M.; Gambarini, G.; Borroni, M.; Cerrotta, A.; Fallai, C.; Invernizzi, M.; Cavatorta, C.; Zonca, G. (Radiation Measurements, 2011)